Begin a game of Candy Rain by pressing the play button on the title screen. Here you can also click the speaker icon to turn off the music if you would like or click the game icon to choose another game. There is also a bubble in the upper lefthand corner of the screen you can click to choose another game as well.
The goal of Candy Rain is to eliminate a specific type of candy from the board a certain number of times. This is done by matching up three specific types of candy and must be completed in a certain amount of turns indicated by the dice icon at the top of the screen. The candy can be moved horizontally and vertically. You can only move candies if an elimination will occur.
If you're stuck, green arrows will appear to help you figure out what to do. As you eliminate candy, more will fall down from the top of the screen. There are also square cookies on the board which cannot be eliminated by normal means and can hinder you.
In the first round, you can use boosters to help make it easier to win. However, they will cost gold after that. Gold can be acquired by watching videos or by beating rounds. Boosters include the lightning bolt that destroys a candy, the rainbow cake that destroys an entire row or column, a doughnut that destroys all candies of a certain type on the board, and dice that give you extra turns.
In some stages, you will have to clear candy from specific tiles called dirty cells. This will require you to use a higher level of strategy. Also, hard candy "bombs" can appear that destroy entire sections of candy, making the game easier.
Once you complete your goal, Splash Time will happen. This is a bonus section in which a number of bombs corresponding to your remaining turns will blow up candy to give you bonus points.